Automatic reciprocating pushing mechanism of pneumatic high-pressure oiling machine
阅读说明:本技术 气动高压注油机自动往复推动机构 (Automatic reciprocating pushing mechanism of pneumatic high-pressure oiling machine ) 是由 杜应特 于 2020-08-13 设计创作,主要内容包括:本发明创造公开了一种气动高压注油机自动往复推动机构,包括缸体,所述的缸体上设有气缸室、左右气室,气缸室内设有活塞,活塞把气缸室分隔为活塞气室和上下气室;左右气室)内对应设有相反方向设置的左右阀芯,左阀芯把左气室分隔为第一至第五左气室,右阀芯把右气室分隔为第一至第五右气室,缸体上设有进气口;左右气室上对应设有左右排气口,气缸室上设有与左气室连通的左气室上排气口和左气室下排气口、与右气室的右气室上排气口和右气室下排气口。采用上述结构后,具有结构简单合理、工作稳定可靠、响应速度快、使用效果好、故障率低、无需换向阀换向等优点。(The invention discloses an automatic reciprocating pushing mechanism of a pneumatic high-pressure oiling machine, which comprises a cylinder body, wherein a cylinder chamber, a left air chamber and a right air chamber are arranged on the cylinder body, a piston is arranged in the cylinder chamber, and the cylinder chamber is divided into a piston air chamber, an upper air chamber and a lower air chamber by the piston; left and right air chambers) are correspondingly provided with left and right valve cores arranged in opposite directions, the left valve core divides the left air chamber into first to fifth left air chambers, the right valve core divides the right air chamber into first to fifth right air chambers, and the cylinder body is provided with an air inlet; the left air chamber and the right air chamber are correspondingly provided with a left exhaust port and a right exhaust port, and the cylinder chamber is provided with a left air chamber upper exhaust port and a left air chamber lower exhaust port which are communicated with the left air chamber, and a right air chamber upper exhaust port and a right air chamber lower exhaust port which are communicated with the right air chamber. After adopting above-mentioned structure, have simple structure reasonable, job stabilization is reliable, response speed is fast, excellent in use effect, the fault rate is low, need not reversing valve advantage such as switching-over.)
1. The utility model provides an automatic reciprocating pushing mechanism of pneumatic high pressure oiling machine, includes cylinder body (1) and corresponds upper end cover (17) and lower end cover (18) of fixing at cylinder body (1) both ends, characterized by: a cylinder chamber (16), a left air chamber, a right air chamber (4, 3) and a cylinder body (1) are correspondingly arranged, a piston (2) capable of moving up and down is arranged in the cylinder chamber (16), a push rod (21) for pushing the oiling pump to work in a reciprocating mode is fixed on the piston (2), and the cylinder chamber (16) is divided into an upper air chamber (22), a piston air chamber (23) and a lower air chamber (24) by the piston (2); left and right valve cores (8, 7) which can move up and down and are arranged in opposite directions are correspondingly arranged in the left and right air chambers (4, 3), the left valve core (8) divides the left air chamber (4) into first to fifth left air chambers (25, 26, 27, 29, 30), the right valve core (7) divides the right air chamber (3) into first to fifth right air chambers (36, 35, 34, 32, 31), and an air inlet (11) communicated with the piston air chamber (23), the third left air chamber (27) and the third right air chamber (34) is arranged on the cylinder body (1); a left exhaust port (20) communicated with a fourth left air chamber (29) is arranged on a cylinder body (1) of the left air chamber (4), a left air chamber upper exhaust port (14) and a left air chamber lower exhaust port (15) are correspondingly arranged between a cylinder chamber (16) and the left air chamber (4), a third left air chamber (27) is communicated with a fifth left air chamber (30) through a left central channel (28), a left copper sleeve (6) with two sealed ends and a hollow middle is arranged on the left air chamber (4) of the fifth left air chamber (30), a hollow layer of the left copper sleeve (6) is communicated with an inner cavity through a plurality of air holes, and a left air chamber air inlet (10) is arranged between a lower air chamber (24) and the hollow layer of the left copper sleeve (6); be equipped with on cylinder body (1) of right air chamber (3) with communicating right exhaust port (19) of fourth right air chamber (32), it goes up exhaust port (12) and right air chamber lower exhaust port (13) to correspond to be equipped with right air chamber between cylinder chamber (16) and right air chamber (3), third right air chamber (34) are through right central channel (33) and fifth right air chamber (31) intercommunication, it is sealed to be equipped with both ends on right air chamber (3) of fifth right air chamber (31), middle hollow right copper sheathing (5), through a plurality of gas pockets intercommunication between the hollow layer of right copper sheathing (5) and the inner chamber, it is equipped with right air chamber air inlet (9) to go up between the hollow layer of air chamber (22) and right copper sheathing (5).
2. The automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine as claimed in claim 1, which is characterized in that: the stress end face of the left valve core (8) matched with the left copper sleeve (6) is smaller than that of the other end, and the stress end face of the right valve core (7) matched with the right copper sleeve (5) is smaller than that of the other end.
3. The automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine as claimed in claim 2, which is characterized in that: the stress area of the upper end face of the fourth left air chamber (29) is larger than that of the lower end face, and the stress area of the upper end face of the fourth right air chamber (32) is smaller than that of the lower end face.
4. The automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine as claimed in claim 1, 2 or 3, which is characterized in that: and sealing rings which are in sealing fit with the cylinder chamber (16) are arranged on the pistons (2) at two sides of the piston air chamber (23).
5. The automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine as claimed in claim 4, which is characterized in that: and sealing rings in sealing fit with the left air chamber (4) are correspondingly arranged on the left valve core (8) between the first left air chamber (25) and the second left air chamber (26), between the second left air chamber (26) and the third left air chamber (27) and between the third left air chamber (27) and the fourth left air chamber (29), and sealing rings in sealing fit with the left copper sleeve (6) are arranged on the left valve core (8) between the fourth left air chamber (29) and the fifth left air chamber (30).
6. The automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine as claimed in claim 5, which is characterized in that: and sealing rings in sealing fit with the right air chamber (3) are correspondingly arranged on the right valve core (7) between the first right air chamber (36) and the second right air chamber (35), between the second right air chamber (35) and the third right air chamber (34), and between the third right air chamber (34) and the fourth right air chamber (32), and sealing rings in sealing fit with the right copper sleeve (5) are arranged on the right valve core (7) between the fourth right air chamber (32) and the fifth right air chamber (31).
Technical Field
The invention relates to the technical field of pneumatic high-pressure oiling machines, in particular to an automatic reciprocating pushing mechanism for pushing an oiling pump of a pneumatic high-pressure oiling machine to automatically oil.
Background
The pneumatic high-pressure oil injection machine is a machine which takes compressed air as energy source to convert the compressed air energy into mechanical energy to push a piston, and the piston drives an oil injection pump to reciprocate through a push rod to inject the oil into a lubricating station. Chinese patent CN104514972B discloses a double-cylinder air supply device for a butter machine, which comprises a pump body seat, an air cylinder installed on the upper side of the pump body seat, and a reversing valve for distributing air for the upper and lower chambers of the piston of the air cylinder, wherein the air cylinder includes an inner cylinder and an outer cylinder, the inner cylinder is provided with a piston connected with a piston rod, a first ventilation channel is arranged between the outer cylindrical surface of the inner cylinder and the inner cylindrical surface of the outer cylinder, the air supply port or the air exhaust port of the reversing valve is communicated with the upper chamber of the piston through the first ventilation channel, and the air exhaust port or the air supply port of the reversing valve is communicated with the lower. The above structure has the following problems in use: firstly, the cylinder is provided with a double-cylinder structure, a gap between the inner cylinder and the outer cylinder is used as a first ventilation channel, and the arrangement of the ventilation channel enables the air supply quantity of the cylinder to be large, the air consumption quantity in use to be approximate to small, and the use efficiency to be low; secondly, the diameter of the outer cylinder is set to be larger, so that the volume is enlarged, the production cost is higher, and the transportation is inconvenient; third, during operation high-pressure air can get into by the air inlet joint after the air-vent valve pressure regulating, realizes piston reciprocating work through the switching-over valve is taken a breath, because the switching-over valve frequently commutates, often can take place the switching-over thoroughly, sealed unreliable, leak gas and the gas scheduling problem, life is short, and the maintenance is changed inconveniently. Aiming at the problems, many manufacturers and acquaintances develop and research, but no ideal product is seen yet.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide the automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine, which has the advantages of simple and reasonable structure, stable and reliable work, high response speed, good use effect, low failure rate and no need of reversing by a reversing valve.
The invention creates the technical scheme used for solving the technical problem, it includes the cylinder block, and upper end cap and bottom end cap fixed at both ends of the cylinder block correspondingly, there are cylinder chambers, left and right air chambers on the said cylinder block correspondingly, there are pistons that can move up and down in the cylinder chamber, is fixed with the push rod that promotes the oil injection pump to reciprocate on the piston, the piston divides the cylinder chamber into upper air chamber, piston air chamber and lower air chamber; the left and right air chambers are internally and correspondingly provided with left and right valve cores which can move up and down and are arranged in opposite directions, the left valve core divides the left air chamber into a first left air chamber, a second left air chamber, a third left air chamber and a fifth right air chamber, the right valve core (7) divides the right air chamber into the first right air chamber, the fifth right air chamber and the fourth right air chamber, and the cylinder body is provided with an air inlet communicated with the piston air chamber, the third left air chamber; a left exhaust port communicated with a fourth left air chamber is arranged on a cylinder body of the left air chamber, a left air chamber upper exhaust port and a left air chamber lower exhaust port are correspondingly arranged between a cylinder chamber and the left air chamber, a third left air chamber is communicated with a fifth left air chamber through a left central channel, a left copper sleeve with two sealed ends and a hollow middle is arranged on the left air chamber of the fifth left air chamber, a hollow layer of the left copper sleeve is communicated with an inner cavity through a plurality of air holes, and a left air chamber air inlet is arranged between the lower air chamber and the hollow layer of the left copper sleeve; the cylinder body of the right air chamber is provided with a right exhaust port communicated with the fourth right air chamber, a right air chamber upper exhaust port and a right air chamber lower exhaust port are correspondingly arranged between the cylinder chamber and the right air chamber, the third right air chamber is communicated with the fifth right air chamber through a right central channel, the right air chamber of the fifth right air chamber is provided with a right copper sleeve with two sealed ends and a hollow middle, the hollow layer of the right copper sleeve is communicated with the inner cavity through a plurality of air holes, and a right air chamber air inlet is arranged between the hollow layer of the upper air chamber and the hollow layer of the right copper sleeve.
According to the further scheme provided by the invention, the stress end face of the left valve core matched with the left copper sleeve is smaller than the stress end face of the other end, and the stress end face of the right valve core matched with the right copper sleeve is smaller than the stress end face of the other end.
In a further aspect of the present invention, the force-bearing area of the upper end surface of the fourth left air chamber is larger than the force-bearing area of the lower end surface, and the force-bearing area of the upper end surface of the fourth right air chamber is smaller than the force-bearing area of the lower end surface.
According to the further scheme of the invention, sealing rings which are in sealing fit with the cylinder chamber are arranged on the pistons at two sides of the piston air chamber.
In the further scheme of the invention, sealing rings which are in sealing fit with the left air chamber are correspondingly arranged on the left valve cores between the first left air chamber and the second left air chamber, between the second left air chamber and the third left air chamber, and between the third left air chamber and the fourth left air chamber, and sealing rings which are in sealing fit with the left copper sleeve are arranged on the left valve cores between the fourth left air chamber and the fifth left air chamber.
According to the further scheme provided by the invention, sealing rings in sealing fit with the right air chamber are correspondingly arranged on the right valve cores between the first right air chamber and the second right air chamber, between the second right air chamber and the third right air chamber, and between the third right air chamber and the fourth right air chamber, and sealing rings in sealing fit with the right copper sleeve are arranged on the right valve cores between the fourth right air chamber and the fifth right air chamber.
After adopting above-mentioned structure, compare with prior art and have following advantage and effect: firstly, when the engine is propelled, the left valve core controls the lower air chamber to intake air, the right valve core controls the upper air chamber to exhaust air, the piston drives the oil injection pump to add oil through the push rod, and the piston is stably and reliably propelled; when the oil injection pump is reset, the right valve core controls the upper air chamber to intake air, the left valve core controls the lower air chamber to exhaust air, and the piston drives the oil injection pump to absorb oil through the push rod; the reciprocating motion of the piston is automatically switched, and the automatic reciprocating work can be realized without a reversing valve. Secondly, because the air inlet and the air outlet are combined with each other, the air inlet and the air outlet are automatically reversed, the response speed is high, the motion space is not occupied, the size is small, the manufacturing cost is low, the energy consumption is saved, the service life is long, and the assembly and the maintenance are simple and convenient.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a schematic view of the cross-sectional structure a-a of fig. 2 in an initial state of the present invention.
Fig. 4 is a schematic view of the cross-sectional structure B-B of fig. 2 in an initial state of the present invention.
Fig. 5 is a schematic view of the cross-sectional structure C-C of fig. 4 in an initial state of the present invention.
FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 2 during the inventive driving process.
FIG. 7 is a schematic view of the sectional structure B-B of FIG. 2 during the inventive driving process.
FIG. 8 is a schematic view of the cross-sectional structure C-C of FIG. 4 during the inventive pushing process.
Fig. 9 is a schematic view of the cross-sectional structure a-a of fig. 2 when the reset state is created according to the present invention.
Fig. 10 is a schematic view of the cross-sectional structure B-B of fig. 2 when the reset state is created according to the present invention.
Fig. 11 is a schematic view of the cross-sectional structure C-C of fig. 4 when the reset state is created according to the present invention.
The gas cylinder comprises a
Detailed Description
Fig. 1 to 11 show that, for the invention, the automatic reciprocating pushing mechanism of the pneumatic high-pressure oiling machine is embodied, which comprises a
In order to control the left and
In order to ensure that the
In order to ensure that each air chamber on the
In order to ensure that each air chamber on the
In the initial state of the invention, as shown in fig. 3 to 5, the
When the
When the
When the
The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical solutions of the present invention.
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